And here's the other thing.
Spam.
This is one of my partners / clients spam filters.
It's the first line of defense in a 3 tiered system so it's not set too aggressively.
It represents about 7 months of filtering at this point.
Even with the triple filter approach the average users inbox is 1/3rd spam.
I'd say realistically only around 15% of what passes through that server is legit mail.
